RU2010145260A - METHOD FOR IMPROVING THE DEHYDRATION PROCESS - Google Patents

METHOD FOR IMPROVING THE DEHYDRATION PROCESS Download PDF

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RU2010145260A
RU2010145260A RU2010145260/04A RU2010145260A RU2010145260A RU 2010145260 A RU2010145260 A RU 2010145260A RU 2010145260/04 A RU2010145260/04 A RU 2010145260/04A RU 2010145260 A RU2010145260 A RU 2010145260A RU 2010145260 A RU2010145260 A RU 2010145260A
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catalyst
volume
rate
dehydrogenation
reactor
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RU2010145260/04A
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Russian (ru)
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Ричард Дуглас НЬЮМАН (US)
Ричард Дуглас НЬЮМАН
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Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL)
Шелл Интернэшнл Рисерч Маатсхаппий Б.В.
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Publication of RU2010145260A publication Critical patent/RU2010145260A/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B35/00—Reactions without formation or introduction of functional groups containing hetero atoms, involving a change in the type of bonding between two carbon atoms already directly linked
    • C07B35/04—Dehydrogenation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3332—Catalytic processes with metal oxides or metal sulfides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/745—Iron

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1. Способ усовершенствования процесса дегидрирования, включающий: ! удаление объема первого катализатора дегидрирования из радиального реактора дегидрирования; ! загрузку реактора объемом второго катализатора дегидрирования, который имеет меньшую скорость истощения, чем первый катализатор дегидрирования; и ! пропускание дегидрируемого углеводорода через реактор, ! в котором объем второго катализатора составляет не более 90% объема удаленного катализатора. ! 2. Способ по п.1, в котором объем второго катализатора составляет не более 75% объема удаленного катализатора. ! 3. Способ по п.1, в котором объем второго катализатора составляет не более 50% объема удаленного катализатора. ! 4. Способ по п.1, в котором загружен в реактор инертный материал. ! 5. Способ по п.3, в котором дегидрируемый углеводород контактирует с катализатором перед контактом с инертным материалом. ! 6. Способ по п.3, в котором падение давления через инертный материал меньше падения давления через катализатор, который был удален. ! 7. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,1 раза больше скорости истощения второго катализатора. ! 8. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,5 раза больше скорости истощения второго катализатора. ! 9. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,8 раза больше скорости истощения второго катализатора. ! 10. Способ по п.1, в котором активность второго катализатора уменьшается со скоростью от 0,1 до 0,8°С/месяц. ! 11. Способ по п.1, в котором активность первого катализатора уменьшается со скоростью более 0,8°С/месяц. ! 1 1. A method for improving the dehydrogenation process, including: ! removing a volume of the first dehydrogenation catalyst from the radial dehydrogenation reactor; ! loading the reactor with a volume of a second dehydrogenation catalyst that has a lower depletion rate than the first dehydrogenation catalyst; And ! passing the dehydrogenated hydrocarbon through the reactor, ! wherein the volume of the second catalyst is no more than 90% of the volume of the removed catalyst. ! 2. The method according to claim 1, in which the volume of the second catalyst is no more than 75% of the volume of the removed catalyst. ! 3. The method according to claim 1, in which the volume of the second catalyst is no more than 50% of the volume of the removed catalyst. ! 4. The method according to claim 1, in which an inert material is loaded into the reactor. ! 5. The method of claim 3, wherein the hydrocarbon to be dehydrogenated is contacted with the catalyst prior to contact with the inert material. ! 6. The method of claim 3, wherein the pressure drop through the inert material is less than the pressure drop through the catalyst that has been removed. ! 7. The method of claim 1, wherein the rate of depletion of the first catalyst is at least 1.1 times the rate of depletion of the second catalyst. ! 8. The method of claim 1, wherein the rate of depletion of the first catalyst is at least 1.5 times the rate of depletion of the second catalyst. ! 9. The method of claim 1, wherein the rate of depletion of the first catalyst is at least 1.8 times the rate of depletion of the second catalyst. ! 10. The method according to claim 1, in which the activity of the second catalyst decreases at a rate of 0.1 to 0.8°C/month. ! 11. The method according to claim 1, in which the activity of the first catalyst decreases at a rate of more than 0.8°C/month. ! 1

Claims (15)

1. Способ усовершенствования процесса дегидрирования, включающий:1. A method of improving the dehydrogenation process, including: удаление объема первого катализатора дегидрирования из радиального реактора дегидрирования;removing the volume of the first dehydrogenation catalyst from the radial dehydrogenation reactor; загрузку реактора объемом второго катализатора дегидрирования, который имеет меньшую скорость истощения, чем первый катализатор дегидрирования; иloading the reactor with a volume of a second dehydrogenation catalyst, which has a lower depletion rate than the first dehydrogenation catalyst; and пропускание дегидрируемого углеводорода через реактор,passing a dehydrogenated hydrocarbon through a reactor, в котором объем второго катализатора составляет не более 90% объема удаленного катализатора.in which the volume of the second catalyst is not more than 90% of the volume of the removed catalyst. 2. Способ по п.1, в котором объем второго катализатора составляет не более 75% объема удаленного катализатора.2. The method according to claim 1, in which the volume of the second catalyst is not more than 75% of the volume of the removed catalyst. 3. Способ по п.1, в котором объем второго катализатора составляет не более 50% объема удаленного катализатора.3. The method according to claim 1, in which the volume of the second catalyst is not more than 50% of the volume of the removed catalyst. 4. Способ по п.1, в котором загружен в реактор инертный материал.4. The method according to claim 1, wherein the inert material is loaded into the reactor. 5. Способ по п.3, в котором дегидрируемый углеводород контактирует с катализатором перед контактом с инертным материалом.5. The method according to claim 3, in which the dehydrogenated hydrocarbon is in contact with the catalyst before contact with an inert material. 6. Способ по п.3, в котором падение давления через инертный материал меньше падения давления через катализатор, который был удален.6. The method according to claim 3, in which the pressure drop through the inert material is less than the pressure drop through the catalyst that has been removed. 7. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,1 раза больше скорости истощения второго катализатора.7. The method according to claim 1, wherein the depletion rate of the first catalyst is at least 1.1 times the depletion rate of the second catalyst. 8. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,5 раза больше скорости истощения второго катализатора.8. The method according to claim 1, wherein the depletion rate of the first catalyst is at least 1.5 times the depletion rate of the second catalyst. 9. Способ по п.1, в котором скорость истощения первого катализатора по меньшей мере в 1,8 раза больше скорости истощения второго катализатора.9. The method according to claim 1, in which the depletion rate of the first catalyst is at least 1.8 times the rate of depletion of the second catalyst. 10. Способ по п.1, в котором активность второго катализатора уменьшается со скоростью от 0,1 до 0,8°С/месяц.10. The method according to claim 1, in which the activity of the second catalyst decreases at a rate of from 0.1 to 0.8 ° C / month. 11. Способ по п.1, в котором активность первого катализатора уменьшается со скоростью более 0,8°С/месяц.11. The method according to claim 1, in which the activity of the first catalyst decreases at a rate of more than 0.8 ° C / month. 12. Способ по п.1, в котором процесс дегидрирования представляет собой процесс дегидрирования алкилароматического соединения.12. The method according to claim 1, wherein the dehydrogenation process is a dehydrogenation process of an alkyl aromatic compound. 13. Способ усовершенствования процесса дегидрирования, включающий замену части катализатора дегидрирования, имеющего скорость истощения от 0,1 до 0,8°С/месяц, в реакторе дегидрирования инертным материалом и введение подаваемого материала, включающего дегидрируемый углеводород, в реактор, в котором подаваемый материал, входящий в реактор, контактирует с катализатором перед контактом с инертным материалом, и падение давления на инертном материале меньше падения давления на замененной части катализатора дегидрирования.13. A method of improving a dehydrogenation process, comprising replacing a portion of a dehydrogenation catalyst having a depletion rate of from 0.1 to 0.8 ° C / month in an inert material in a dehydrogenation reactor and introducing a feed material comprising a dehydrogenated hydrocarbon into a reactor in which the feed material entering the reactor is in contact with the catalyst before contact with an inert material, and the pressure drop on the inert material is less than the pressure drop on the replaced part of the dehydrogenation catalyst. 14. Способ по п.13, в котором активность стабильного катализатора дегидрирования уменьшается со скоростью от 0,4 до 0,6°С/месяц.14. The method according to item 13, in which the activity of a stable dehydrogenation catalyst decreases at a rate of from 0.4 to 0.6 ° C / month. 15. Способ дегидрирования дегидрируемого углеводорода в радиальном реакторе, где первый катализатор был предварительно удален, а второй катализатор был загружен, в котором второй катализатор имеет меньшую скорость истощения, чем первый катализатор, и объем второго катализатора составляет не более 90% объема первого катализатора. 15. A method for dehydrogenating a dehydrogenated hydrocarbon in a radial reactor, where the first catalyst was previously removed and the second catalyst was charged, in which the second catalyst has a lower depletion rate than the first catalyst, and the volume of the second catalyst is not more than 90% of the volume of the first catalyst.
RU2010145260/04A 2008-04-09 2009-04-07 METHOD FOR IMPROVING THE DEHYDRATION PROCESS RU2010145260A (en)

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EP (1) EP2288583A1 (en)
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EP2288583A1 (en) 2011-03-02
WO2009126601A1 (en) 2009-10-15
CN102046568A (en) 2011-05-04
TW200946229A (en) 2009-11-16
US20090318741A1 (en) 2009-12-24

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